A man from west London has been arrested on suspicion of terrorism offences after three police officers were injured in an incident involving a sword outside Buckingham Palace.
The 30-year-old from west London has been arrested on suspicion of being involved in the commission, preparation or instigation of terrorism, the Metropolitan Police said.
The arrest was carried out by officers from the Met's Counter Terrorism Command who are investigating the terrorist incident in Constitution Hill which resulted in three officers receiving minor injuries on Friday night (August 25).
Officers have also been granted a warrant for the further detention of a 26-year-old man who was arrested at the scene.
Police have been given permission to hold the 26-year-old man from the Luton area until September 1.
He was arrested on suspicion of grievous bodily harm and assault on police and was later further arrested under the Terrorism Act 2000.
It is understood that no members of the Royal Family were in Buckingham Palace when the attack happened.
The man who was arrested on Sunday (August 27) is being held in custody and an address in west London is being searched.
Police said officers had confronted a driver of a vehicle outside the palace and three unarmed constables had subsequently been injured in an incident that involved a 4ft sword.
Two of the officers were taken by ambulance to hospital with minor cuts and discharged a short time later. The third officer did not need hospital treatment.
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